The applications of multislice spiral CT in the diagnosis of spinal fractures / 中国基层医药

ObjectiveTo evaluate the value of three dimensional spiral computed tomography(3D SCT) and its reconstruction technique in the diagnosis of spinal fracture. Methods85 patients of vertebral fractures were examined with helical CT thin scan. After data were transferred to computer workstation,MPR and 3D images were reconstructed. Each study was evaluated for showing the level of the fractures, vertebral alignment, vertebral height loss,line of fractures, posterior element involvement, narrowing of the vertebral canal, and the grade of rotation and/or dislocation. Results85 patients were detected in 104 CT vertebral fractures:C4 ～ C7 4 vertebra,T6 9vertebra,T10 10 vertebra,T11 16 vertebra,T12 22 vertebrae,L1 19 vertebrae,L2 6vertebra,L3 8 vertebrae,L4 10 vertebra. Of 85 cases,The fratures were displayed by the images of CT,MPR is more supcrior in displaying alignment and displaeement of frarue than thoso of other techniques, MPR has an advantage in displaying the small fractures,3D displays the space of bone structures,and neural canal compression. ConclusionSpiral CT diagnosis of vertebral fractures had a high application value. Axial, MPR and 3D in combination, could clear the degree of injury,three-dimensional,visual, multi-directional information needed to provide clinicians, will help the choice of treatment.

A Case of Primary Pericardial Undifferentiated Sarcoma

Primary pericardial sarcomas are extremely rare. The authors report a case of a 46-yr-old woman in whom a large mediastinal mass was discovered. The patient presented with cough, dyspnea, and orthopnea. Diagnostic investigations, such as echocardiography, computed tomography, and exploratory thoracotomy provided the evidence of a large mass in the mediastinum, attached by a broad base to the superior portion of the pericardium. A excisional biopsy was performed, and histologic examination of a biopsy specimen showed undifferentiated sarcoma. However, the complete removal of the mass was impossible due to adhesion to the adjacent great vessels. After the completion of the chemotherapy the patient was completely asymptomatic. However, follow-up transesophageal echocardiography showed a residual 3x4 cm-sized mass. The patient received the radiotherapy with a total dose of 55 Gy over 6 weeks. At present, there is no evidence of disease progression.

Coronary Sectional and Imaging Anatomy of the Human Knees / 实用放射学杂志

Objective To provide coronary sectional anatomical basis for imaging diagnosis of the injure and disease of the knees.Methods 5 right knees of male adults cadavers were used . After the MR imaging examination,all specimens were frozen and cut into 6 coronary sections . Results The morphological charactenstics relation and the law of variation of the articular facets,articular capsule,articular cavity,cruciate ligaments,menisci,synovial plicae and its surrounding structures on all coronary sections of knees were observed, and compared with the corresponding MR images .Conclusion The variation of morphology and structures of all coronary sectional specimens of knee joint provided foundation of dependable anatomy and clinical value for medical imaging diagnosis .